metabolic process phenotype secondary metabolic process phenotype 2019-01-18T12:55:20Z Definition adapted from GO:0019748 secondary metabolic process alaynecuzick GO:0019748 A single organism phenotype that affects the chemical reactions and pathways resulting in many of the chemical changes of compounds that are not necessarily required for growth and maintenance of cells, and are often unique to a taxon. In multicellular organisms secondary metabolism is generally carried out in specific cell types, and may be useful for the organism as a whole. In unicellular organisms, secondary metabolism is often used for the production of antibiotics or for the utilization and acquisition of unusual nutrients. single_species_phenotype